The Geminids meteor shower as photographed above a radio telescope dish called MUSER, a solar-dedicated radio telescope array at astronomically-named Mingantu Station in Inner Mongolia, China, on Dec. 15, 2017. (Photo by Yin Hao)

False color imagery of the geminid meteor shower shows the meteors — pieces of debris from an object called 3200 Phaethon that is now considered an extinct comet — sailing through the night sky. (NASA)

(University of Minnesota)

The 2009 Geminid meteor shower, photographed in San Francisco. (Photo by Brocken Inaglory)

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Tonight’s the night for some fiery, in-your-face skygazing.

The Geminids meteor shower, expected to peak late tonight and early Friday, promises to be the astronomical apex of 2018. With hundreds of meteors sailing across the night skies, Earthlings are in for quite a sight. And best of all, tonight’s weather in the Bay Area is expected to cooperate nicely: Forecasts call for clear skies with inland temperatures dipping into the mid-40s.

The slow-moving Geminids are unique because they’re only one of two showers that originate from an asteroid instead of a comet. And with their full basket of meteors annually piercing the night sky for as many as eight hours, the Geminids are a favorite among astronomers.

Here are some things to know about tonight’s display:

When does the shower take place?

The Geminids can be seen each year, weather-permitting, in December, peaking between Dec. 6-14 with this year’s highest intensity coming early Friday.

What times are best for viewing?

Another thing that makes Geminids a fan favorite is that you can start to see them as early as 7:30 p.m. local time, which means you don’t have to stay up way past your bedtime to enjoy the show. Experts say the show really gets good after midnight; if you DO want to stay up even later than that, you can continue to watch the meteors until just before dawn.

What makes the Geminids special?

Many experts say the Geminids shower is the best one each year because it faithfully produces dozens, and as many as 160, meteors per hour. Many of these meteors are so bright that they are considered to be fireballs, which are meteors that are brighter than the planet Venus.

When were they first discovered?

Geminids were first observed in 1862, which kind of makes them the new kid on the block. The Perseids shower was first seen in 36 AD, while the Leonids shower was first reported in 902.

What are we actually looking at?

Here’s how NASA puts it: “Those streaks of light are really caused by tiny specks of comet-stuff hitting Earth’s atmosphere at very high speed and disintegrating in flashes of light.”

What else should we know about these meteors?

First, they often appear yellowish in color. People watching the shower in the northern hemisphere will see more meteors than viewers in the southern hemisphere. The meteors will be traveling at about 22 miles per second, which makes them relatively easy to spot and track. Finally, they disintegrate and vanish while they reach 24 miles above the Earth’s surface.

What’s the best way to watch the shower tonight?

Take the kids out at 9 p.m., before tucking them in for the night. Then stay up later if you can, and sit back and enjoy the fireworks. The meteors will be visible from one end of the night sky to the other. So find a comfortable spot in a place that has the maximum open view of the sky, then lay back. Since the moon sets tonight about 11 p.m., the viewing should start out good and just get better by the hour.

Where are good places to see the shower?

You want to watch as dark of a piece of the sky as you can find, which means maybe leaving the city lights behind and heading, say, into the Santa Cruz mountains or on the beach in Pacifica or Alameda. Also, avoid tall buildings and trees.

Do I need binoculars to see the meteors?

Of course, telescopes and even amateur binoculars can help bring the meteor shower closer to you for viewing. But NASA recommends you do your skygazing with your own eyes: “Using either reduces the amount of sky you can see at one time, lowering the odds that you’ll see anything but darkness,” NASA says on its website. “Instead, let your eyes hang loose and don’t look in any one specific spot. Relaxed eyes will quickly zone in on any movement up above, and you’ll be able to spot more meteors.”

Any other advice?

Start by looking low in the sky to the east. That’s where you’ll find the constellation Gemini, for which this meteor shower is named. As Gemini moves higher and higher in the sky over the hours, more and more meteors should become visible. While the meteors can show up anywhere in the sky, you’d be smart to gaze straight up because that way you’ll have the widest viewing area. And finally, have patience. Your eyes need as much as 30 minutes to adjust to the night sky.

What if it’s cloudy where I am?

NASA has you covered. Meteor experts from NASA’s Meteoroid Environment Office have been live on Facebook each night since Dec. 12 discussing the Geminids. And NASA will broadcast the Geminid shower live via Ustream starting at sunset Thursday from the Automated Lunar and Meteor Observatory at NASA’s Marshall Space Flight Center in Huntsville, Alabama. You can also see Geminid meteors on NASA’s All Sky Fireball network page.

Patrick May is an award-winning writer for the Bay Area News Group working with the business desk as a general assignment reporter. Over his 34 years in daily newspapers, he has traveled overseas and around the nation, covering wars and natural disasters, writing both breaking news stories and human-interest features. He has won numerous national and regional writing awards during his years as a reporter, 17 of them spent at the Miami Herald.

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